Simple Water Detection Sensor with Digital Output

PRODUCT ID: 4965
$1.95


QTY DISCOUNT
1-9 $1.95
10-99 $1.76
100+ $1.56

Description

Keep wet things wet and dry things dry by detecting when the dry things get wet by accident! This palm-sized cherry-red water sensor is simple and easy to implement in your wet-dry-sensing project.

Usage is very simple: connect the minus (-) pin to ground, connect the plus (+) pin to 3 to 5V DC and then the output signal pin (S) goes to your microcontroller.

The sensor has a very lightly biased transistor that is connected to two long sets of interlocking traces. When a lil bit of water/condensation lands on the PCB and touches two of the traces, the transistor will turn on, setting the output pin high. The output voltage does vary a bit with how much water is detected, but honestly we recommend just using it as an "on or off" type sensor.

Avatar water-bending skills not included!

https://www.youtube.com/embed/pl6T7UXQNpA?start=146

Technical Details

Technical dimensions (including header): 64.7mm x 20mm x 7.7mm

Product Weight: 3.7g / 0.1oz

RoHS 2 2011 65 EU Compliant
RoHS 2 2015 863 EU Compliant

Learn

Keep an eye on your pet's water using the FunHouse and Home Assistant